Insulated rail-joint.



B. G. BRAINE & V. C. ARMSTRONG.

INSULATED RAIL JOINT. APPLICATION FILED APR. 16, 1908.

Patented July 1, 1913.

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-' BG. BRAINB @L V. o. ARMSTRONG.

INSULATBD RAIL JOINT.

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"1,066,074, Patented July 1, 1913.

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B. G. BRAINE & V. G. ARMSTRONG. INSULATBD RAIL JOINT. APPLIOATION FILED Amma, loos.

1,066,074. Patented July 1, 1913.

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nANosOrT G. BRAINE AND VICTOR c. ARMSTRONG, OF NEW YORK, N. Y., AssiGNons To THE RAIL JOINT COMPANY, OF NEW YORK,` N. Y., A CORPORATION or NEW I. y YORK.

Laconia. 1

To Nur/012i i'z may 'conocia Be it linown that We, BANCROFT G. BRAiNF. and lf'vicioii C. ARMSTRONG, citizens of the 1United States, both residing at New York' city, in the county of New York and State of Few York, have rinvented certain new and useful In'iprovenients in Insulated Rail- Joints, of which the following is a specificatio T s invention relates to the subject of insulated rail joints, and has special refer- 4 ence to certain novel and practical improvements in the insulation for joints. Of that character. l

.To this end the invention contemplates an effective arrangement and use of the insulating material for rail oints, along thoroughly practical lines, so as tO insure greater facility in the applicationof the insulating material, while also Asecuring a maximum economy in service.

= Furthermore, the invention provides for the complete insulation of a rail joint Witli- The essential features of thcinvention are necessarily susceptible to structural modification, and to application to variouskinds of joints, without departing from the scope thereof," but certain preferred embodiments of the invention are exemplified by the accompanyingl drawings', in` which:

Figure lis a side elevation ot' an insulated radil joint'of the continuous type, show-ingsucli joint insulated according to the Apresent invention. Fig. is a horizontal sectionalview on the line .Q -Q of Fig. l. Fig; 3y isla. vertical cross sectional view 'iew or elevationof the design of insulating out the invention. Fig. 5 is a view similar to- Fig. lishouf'ing a joint of the continuous type provided --vith cross insulation ein- -pl'oyed in accordance with the `present in- Specification of Letters latent. Appncatioriaiea Aprii i6, 190s.

i art.

:INSULATED RAIL-JoiNT.

Patented July i, lfi. serial Nd. 427,462.

Fig. 7 is a vertical cross sectional view on the line 7 7 of Fig. 5. Fig. S is a plan View or elevation of the design of insulating end post utilized in the structure shown in Figs. .5, 6, and 7.

Like references designatecorresponding parts in the several figures of the drawings.

A distinctive feature of the present invention resides in combining with a rail joint having continuous joint bars or splice bars. separate. insulation plates for each rail, and which insulation plates may therefore be characterized as discontinuous plates in contradistin'ction to the [said continuous joint bars or splices. This desirable combination-may be embodied in any oi' all varieties` of rail joints employing fish plates, angle bars, channel bars, or any of the divers forms of splices which extend across the joint between the meeting ends of the rails andare fastened to the latter by the usual joint bolts, but inasmuch as the improved insulation provides a most satisfactory and practical insulated joint of the well known continuous type, the latter is shown in the various figures of the drawings for the purpose of eitemplifying the improvements. Hence, referring to these drawings, atientioii is first directed to the illustration of Figs. l, 2, 3, and`4. `In the figures of the.

ing `hase section 7 integrated'wilh the foot.

flange of the angle bar, all of which is well understood by those fainiliar with the Also, no change` is required by the present invention in. tlie, bolt insulation 3, asany of the ordinary bolt insulating expedients may be resorted to in order to pro- `vide anv effective insulation between the bolts end post preferably employed in carrying.;

andthe joint liars, vbut the distinguishing improvement ofy the presentinvention i'esides in having the insulation plates al discontinuous, that is, in separate pieces for each., rail. j .i The insulation plates consist of the usual ,'iiber sheets or other suitable insulating ina,-

'terial, and in their application to a rail joint of the character shown in the several figures of the drawings the said insulation plates are interposed bet-Ween the rails and the side jointbars l, and fdllow..I the general contour of such bars so as to extendcontim uonsly from points beneath the rail heads, about the rail sides, and over and under the rail flanges, as plainly shown for instance in Fig. 3 of the drawings, thus affording complete and effective insulation for all bearing points and faces of the joint bars l.

Irrespective of the contour of the insulation plates 4,. the latter, being eut in separate pieces for each rail, do not cross the jointl between the meeting ends of the rails, and according to the form of the invention shown in Figs. l, 2, and 3 of the drawings, each rail has the separate insulation plates therefor arranged upon both sides thereof so vthatjin the complete joint there are four separate and independent pieces or sections of the insulation plates t, two for each rail'. In addition to the insulation plates t being discontinuous, another feature of the invention consists in having said plates a trifle 'shorter than one-half the length of the rail y j oint, and in making the fiber or equivalent insulating end post 5 not only in the form of the cross section of the rail with a head member of .normal widtli and height, but also of anextra width at the under sides of and below said head member so as to provide such post with what may be termed overlap edges 8 which overlap and project to the full width of the adjacent end edges of the insulation plates Lt next to the meet-ing ends of the rails, as may be clearly seen in Figs. l and 9 and (i of the drawings.

'lhe distinct advantage of the construction just described is that the end Apostmade in lthe manner explained and shownis much strenger than the ordinaryend post, and the separate discontinuous insulation plates 4 being short, can be much more readily applied. Furthermore, it will be obvious that the individual insulation plates et can be shifted from e side .of the rail to the. other, or from the end of one rail to the end of the other rail and thus interchanged or shifted about to such advantage as the condition of the joint may require. In this connection, it will be quite apparent that in the ease of repairs the capability of the insulation plates to Ibe shifted or interchanged would be quite advantageous and effect a considerable saving in material, particularly on account of the manner in which the cutting out of the insulation starts at the ends of the rail. Furthermore, in case the spacing of the bolt holes was incorrect, -or if the user of the jointidesires to cut additional holes in the liber or insulation plate, 1t

Wouldbe a comparatively easy matter ,to

instance as vthe one 'suggested inthe group of Figs. 5, 6 and 7. In these figures of the drawings the joint isshown as having the insulation plates alternated with `steel filler plates 9, which latter conform in size, contour, and arrangement to their comple-i mental insulation plates. In other words, as clearly indicated in Fig. 6, each raillias upon 011e side the insulation plate, and upon its opposite side a steel filler plate 9, the said elements being reversed in position on the other rail., thereby making av cross insulation for the joint.

From the foregoing, it is thought that the construction and advantages of the herein described in'iprovement in rail joint insulation will be apparent without further description, and itwill be understood that changes in the form, proportion, and minor details of construct-ion may be'resorted to without departing from the spirit or sacrilicing any ofl the advantages of the invention.

Te claim:

An insulating means for rail joints, comprising in combination with rails` and side jointI bars having rail supporting base sections, a plurality of insulation plates and filler plates lying between the railsand the various rail bearing faces of the joint bars and ar `anged in eomplemental relation, each of said plates being in a separate piece that is shorter than one half the length of the rail joint and terminating at one end at a point short of the meeting ends of the two rails` and an insulating end post inthe forni.

of the`cross section of the rails, said end post having a head member of normal width and Aheight and being' of an extra width at the under sides of said head member and at all points below the saine to form overlapping edges which are arranged to overlap the end edges 'ofthe said various plates next to the meeting ends of the rails.

- In testimony whereofwe herenntowatlix our signatures in the presence of two wit- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C'. 

